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Estimates of External Validity Bias When Impact Evaluations Select Sites Purposively
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Stuart, Elizabeth A.; Olsen, Robert B.; Bell, Stephen H.; Orr, Larry L. – Society for Research on Educational Effectiveness, 2012
While there has been some increasing interest in external validity, most work to this point has been in assessing the similarity of a randomized trial sample and a population of interest (e.g., Stuart et al., 2010; Tipton, 2011). The goal of this research is to calculate empirical estimates of the external validity bias in educational intervention…
Descriptors: Validity, Bias, Computation, Outcome Measures
Using Mahalanobis Distance Scores for Matched Pairing of Schools in a Randomized Controlled Trial Study of Leadership and Assistance for Science Education Reform (LASER)
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Zoblotsky, Todd; Ransford-Kaldon, Carolyn; Morrison, Donald M. – Society for Research on Educational Effectiveness, 2011
The present paper describes the recruitment and site selection process that has been underway since January 2011, with particular emphasis on the use of Mahalanobis distance score to determine matched pairs of sites prior to randomization to treatment and control groups. Through a systematic winnowing process, the authors found that they could…
Descriptors: Science Instruction, Educational Change, Research Methodology, Site Selection
Diversifying Smalltown Economies with Nonmanufacturing Industries.
Smith, Stephen M. – Rural Development Perspectives, 1985
Discusses service industries' role in developing economies of rural areas. Describes ways service industries generate employment and local income and blend with a local economy. Summarizes survey of contributions to local economies and what attracted them to their communities for 385 service firms in nonmetropolitan Wisconsin. Tables provide…
Descriptors: Community Development, Municipalities, Rural Areas, Rural Development
The Field Practice Component of Early Childhood Education Preservice Training Programs.
Doxey, Isabel M. – 1983
A critical analysis of the field practice component of early childhood teacher education is presented. As used here, the term "practice" includes on- and off-campus student teaching programs that provide preservice experiences for persons intending to work with children from birth to eight years of age and lead to a two-year diploma or a…
Descriptors: Early Childhood Education, Foreign Countries, Higher Education, Postsecondary Education
The Origins and Development of the National Training Center, 1976-1984. TRADOC Historical Monograph Series.
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Chapman, Anne W. – 1992
Focusing on the development of the United States Army's National Training Center (NTC) from conceptualization and initial implementation in 1981 to the end of the first phase of development in 1984, this monograph provides a documented historical analysis of how and why the landmark event in army training was launched and examines attendant policy…
Descriptors: Armed Forces, Federal Government, Military Personnel, Military Training
How the ARCS Was Done. NCSALL Occasional Paper
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National Center for the Study of Adult Learning and Literacy (NCSALL), 2000
The National Center for the Study of Adult Learning and Literacy (NCSALL) Adult Reading Components Study (ARCS) was the first large-scale attempt to describe the reading of students enrolled in adult basic education (ABE) and English for speakers of other languages (ESOL) using a battery of individually administered reading and language tests.…
Descriptors: Site Selection, Language Tests, Adult Basic Education, Adult Education